BCAL timing

[Alex Dzierba <dzierba@indiana.edu>]

	Hi All

At Friday's phone conference we are meant to be having a discussion
of timing for charged particles from BCAL.   Since some work has been
done with cosmic rays - can someone take responsibility for coming up
with a number for BCAL?   As far as I know, the current estimate is
of order 420 ps based on Christine's cosmics analysis and a followup e-mail
exchange between Christine and Elton.  Andrei - have you done any
independent analysis with cosmics?  Maybe a two-page note summarizing
what we know and how we know it would be appropriate.

I am currently working on the analysis of the fiber emission spectra
I received from Blake last night.   After that I will produce 2-3 slides
showing how 420 ps allows to separate pi/proton but not pi/K
for the reactions of interest.

Two other comments:  (1) Stefano said that KLOE achieved 320 ps for
mips and (2) Zisis is doing work on understanding BCAL response to
protons (apart from timing).

Cheers
Alex
-- 
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Alex R. Dzierba
Chancellor's Professor of Physics (Emeritus)
Department of Physics / Indiana U / Bloomington IN 47405 / 812-855-9421
JLab Visiting Fellow
Jefferson Lab / 12000 Jefferson Ave / Newport News, VA 23606 / 757-269-7577
Home Phone: 812-825-4063  Cell:  812-327-1881  Fax: 866-541-1263
http://www.dzre.com/alex
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